Please use this identifier to cite or link to this item:
|Title:||Ray-optical modeling of simulcast radio propagation channels in tunnels||Authors:||Hong, H. J.
Zhang, Yue Ping
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics||Issue Date:||2004||Source:||Zhang, Y. P., & Hong, H. J. (2004). Ray-optical modeling of simulcast radio propagation channels in tunnels. IEEE Transactions on Vehicular Technology. 53(6), 1800-1808.||Series/Report no.:||IEEE transactions on vehicular technology||Abstract:||Simulcast radio propagation channel characteristics inside tunnels are considered in this paper. Based on the image theory of ray optics, a simulcast radio propagation channel in a rectangular tunnel is exactly formulated. As only the field components of horizontal and vertical polarization are of interest in real implementation, the exact formulation is approximated to facilitate the numerical computation. The calculated simulcast radio propagation channels are comparable fairly to measurements at 900 MHz and 2.0 GHz. The validated ray-optical modeling approach is then applied to simulate simulcast radio propagation channel characteristics at 900 MHz and 2.0 GHz to gain deeper insight and better understanding of this type of channels in tunnels. Results show that large fluctuations occur in the capture regions of the distributed antennas for both 900 MHz and 2.0 GHz. The fluctuations in the simulcast regions are larger at 2.0 GHz than at 900 MHz. The root-mean-squared (rms) delay spread is greater in the simulcast regions than in the capture regions of the distributed antennas. This larger delay spread is mainly due to the delay introduced by the transmission medium. Large values of the rms delay spread can be avoided by a careful design of the distance between the distributed antennas.||URI:||https://hdl.handle.net/10356/100936
|ISSN:||0018-9545||DOI:||10.1109/TVT.2004.836920||Rights:||© 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Journal Articles|
Files in This Item:
|Ray-optical modeling of simulcast radio propagation channels in tunnels.pdf||698.52 kB||Adobe PDF|
Updated on Sep 6, 2020
Updated on Feb 26, 2021
Page view(s) 5677
Updated on Mar 5, 2021
Updated on Mar 5, 2021
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.